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Helmholtz coil
Helmholtz coil

Helmholtz coil

Use two coils with exactly the same radius and number of turns and arrange them coaxially and make the distance equal to the radius. This combination of coils is called a Helmholtz coil. It can generate a very weak magnetic field up to hundreds of Gs; the coil has a large uniform area, an open space for use, and easy operation. It can realize one-dimensional, two-dimensional, and three-dimensional combined magnetic fields, and can provide AC and DC magnetic fields. The current has a good linear relationship with the magnetic field.

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  • 产品描述
  • Parameter
  • Coil case
    • Commodity name: Helmholtz coil
    • Commodity ID: 1303290231788294144

    Use two coils with exactly the same radius and number of turns and arrange them coaxially and make the distance equal to the radius. This combination of coils is called a Helmholtz coil. It can generate a very weak magnetic field up to hundreds of Gs; the coil has a large uniform area, an open space for use, and easy operation. It can realize one-dimensional, two-dimensional, and three-dimensional combined magnetic fields, and can provide AC and DC magnetic fields. The current has a good linear relationship with the magnetic field.

    Product introduction
    Use two coils with exactly the same radius and number of turns, arrange them coaxially and make the distance equal to the radius, this kind of coil combination is called Helmholtz coil. It can generate a very weak magnetic field up to hundreds of Gs; the coil has a large uniform area, an open space for use, and easy operation. It can realize one-dimensional, two-dimensional, and three-dimensional combined magnetic fields, and can provide AC and DC magnetic fields. The current has a good linear relationship with the magnetic field. It is suitable for various research institutes, universities and enterprises to do material magnetism or testing experiments, applied to materials, electronics, biology, medical treatment, aerospace, chemistry, applied physics and other disciplines. Its main purpose: to generate standard magnetic fields; Cancellation and compensation, geomagnetic environment simulation, determination of magnetic shielding effect, electromagnetic interference simulation experiment, Hall probe and various The calibration of a kind of magnetometer, the study of biological magnetic field and the study of the magnetic properties of matter.
    Hunan Forever Elegance Technology Co.,Ltd is in the forefront of the international counterparts in the generation of Helmholtz coil magnetic field. At present, we have successively developed and designed: circular, square, and octagonal Helmholtz coils. At the same time, with the help of finite element design tools, we have developed compensating octagonal Helmholtz coils. The uniformity area is increased by eight times.
    When users choose Helmholtz coils, please provide the magnetic field strength, uniformity range and uniformity requirements according to the experimental needs. We can provide users with detailed design methods and selection of supporting power supplies in the shortest time.

     

    Application field
    ● Cancellation and compensation of the earth's magnetic field
    ● Geomagnetic environment simulation
    ● Judgment of magnetic shielding effect
    ● Electromagnetic interference simulation experiment
    ● Generate standard magnetic field
    ● The study of the biological magnetic field-the study of the magnetic properties of matter
    ● Generate standard magnetic field    

     

    Helmholtz coil usage classification
    ● Use with a flux meter to measure the magnetic flux of the material;
    ● Cooperate with the permanent magnet quality measuring instrument developed by Hunan Forever Elegance Technology Co.,Ltd or Magnetic declination measuring instrument can further determine the material quality and screen incoming materials; div>
    ● Water-cooled Helmholtz coils can be made according to requirements: the magnetic field value can be on the order of thousands of Gauss, to meet customer needs;
    ● One-dimensional, two-dimensional, and three-dimensional square Helmholtz coils can be customized, which are generally used to generate the specified uniform area with relatively large volume and high uniformity, and the magnetic field value is from a few Gs to dozens of Gs An order of magnitude magnetic field.

     

    Key words:
    • coil
    • the
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    • magnetic
    • and
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    • field
    • helmholtz
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  • One-dimensional Helmholtz coil technical parameter reference table

    Coil model Coil constant (K) The uniformity of the coil corresponds to the uniform area of ​​the coil (mm) Coil resistance(Ω) A(mm) B(mm) C(mm) D(mm) E(mm) F(mm)
    FE-HM150 0.0162

    0.1%(16*16*16), 1%(33*33*33)

    		 83 150 40 180 54 112 17
    FE-HM200 0.022

    0.1%(20*20*20), 1%(42*42*42)

    		 112 200 60 240 79 120 37
    FE-HM300 0.032

    0.1%(32*32*32), 1%(63*63*63)

    		 164 300 80 350 129 170 52
    FE-HM400 0.04

    0.1%(48*48*48), 1%(84*84*84)

    		 210 370 100 430 170 230 Customizable
    FE-HM500 0.05

    0.1%(60*60*60), 1%(105*105*105)

    		 266 470 120 530 220 280 Customizable
    FE-HM600 0.06

    0.1%(72*72*72), 1%(125*125*125)

    		 318 570 140 630 270 330 Customizable
    FE-HM700 0.07

    0.1%(84*84*84), 1%(145*145*145)

    		 371 670 160 730 315 380 Customizable
    FE-HM800 0.08

    0.1%(96*96*96), 1%(165*165*165)

    		 423 770 180 830 360 430 Customizable
    FE-HM900 0.09

    0.1%(96*96*96), 1%(188*188*188)

    		 474 870 200 930 410 480 Customizable
    Non-standard Can be designed and manufactured according to customer requirements (water-cooled coils can be made)
    Remarks

    This table is only for reference. For actual coil standards, please contact Sales Manager: Mr. Hu: Click here to send me a message

    E-Mail:  85762501@qq.com

    WeChat: 15273822576

     

  • FE-MF round one-dimensional Helmholtz coil
    ● The inner diameter of the coil is about 145mm, and the outer diameter of the coil is about 240mm;
    ● The coil winding wire diameter is 1.5mm, and the coil resistance is 3 ohms;
    ● When the coil input current is 5A, the corresponding coil center magnetic field is not less than 100Gs;
    ● When the coil uniformity is 1%, the size of the uniform area at the center of the corresponding coil is better than 40*40*40mm;
    ● When the coil uniformity is 0.5%, the size of the uniform area at the center of the corresponding coil is better than 32*32*32mm.
     
    FE-3FM150 circular three-dimensional Helmholtz coil
    ● FE-HM150 three-dimensional Helmholtz coil constant is designed to be less than 0.04cm, and the accuracy is 0.3%
    ● The effective radius of X coil is greater than 120mm;
    ● The effective radius of Y coil is greater than 90mm;
    ● The effective radius of Z coil is greater than 75mm;
    ● 0.3% of uniform area: 24mm*24mm*24mm
    ● Range of even zone: 1.0%: 32mm*32mm*32mm
     
    FE-1000MF one-dimensional magnetic field generating coil (vertical magnetic field)
    ● Coil specifications: side length 2.400m× 2.400mm, the frame is made of aluminum alloy (one set for main coil and auxiliary coil);
    ● Diameter of winding coil enameled wire: Ø2.0mm, temperature resistance class 140°;
    ● Helmholtz coils can be placed left and right to generate a horizontal magnetic field;
    ● Central magnetic field intensity: -200uT～200uT;
    ● Average and zone range: 1000mm×1000mm×1000mm, uniformity is better than 1.0%;
    ● Corresponding magnetic field: When working at 6A constant current, the magnetic field is greater than 2.0Oe, and it can be used continuously under the maximum magnetic field conditions (air flow environment).
     
    FE-3FM500 new type super large uniform area three-dimensional Helmholtz coil
    ● Coil specifications: side length 2.400m× 2.400mm, the frame is made of aluminum alloy (one set for main coil and auxiliary coil);
    ● Diameter of winding coil enameled wire: Ø2.0mm, temperature resistance class 140°;
    ● Helmholtz coils can be placed left and right to generate a horizontal magnetic field;
    ● Central magnetic field intensity: -200uT～200uT;
    ● Average and zone range: 1000mm×1000mm×1000mm, uniformity is better than 1.0%;
    ● Corresponding magnetic field: When working at 6A constant current, the magnetic field is greater than 2.0Oe, and it can be used continuously under the maximum magnetic field conditions (air flow environment).
     

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